add items in recycler view

/*this is my custom adapter*/
public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
    ArrayList<MyClass> myClass;
    MyAdapter(ArrayList<MyClass> myClass){
        this.myClass = myClass;
    }
    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.myadditems,parent,false);
         MyViewHolder myViewHolder = new MyViewHolder(view);
        return myViewHolder;
    }

    @Override
    public void onBindViewHolder(final MyViewHolder holder, final int position) {
        MyClass myClasses = myClass.get(position);

        holder.studentName1.setText(myClasses.getStudentname());
        holder.studentAge1.setText(myClasses.getStudentage());
        holder.studentEmail1.setText(myClasses.getStudentemail());
        holder.studentImage1.setImageResource(myClasses.getStudentimage());
        holder.deleteButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            removeItem(position);
        }
    });
}

    @Override
    public int getItemCount() {
        return myClass.size();
    }
 public void removeItem(int position) {
        myClass.remove(position);
        notifyItemRemoved(position);
    }

/* this is my list activity where i am adding items in adapter*/


        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycle);
        String name = getIntent().getStringExtra("name");
        String age = getIntent().getStringExtra("age");
        String email = getIntent().getStringExtra("email");
 ArrayList<MyClass> myData = new ArrayList<>();
        //i am stroing intent in arraylist but it doesnt work
        myData.add(new MyClass(name,age,email,R.drawable.people));
        myData.add(new MyClass(aa,bb,cc,R.drawable.people));
        // this is when i manually set value it works
        myData.add(new MyClass("alihamza","21","alihamzakhan@gmail.com",R.drawable.people));
        myData.add(new MyClass("alihamza","21","alihamzakhan@gmail.com",R.drawable.people));
        myData.add(new MyClass("alihamza","21","alihamzakhan@gmail.com",R.drawable.people));
        myData.add(new MyClass("alihamza","21","alihamzakhan@gmail.com",R.drawable.people));
        MyAdapter myAdapter = new MyAdapter(myData);
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(linearLayoutManager);
        recyclerView.setAdapter(myAdapter);
        myAdapter.notifyDataSetChanged();